Table 2. RMSE for predicted abundance gradients.

RMSE has been calculated between the predicted gradients and the target gradients, both in silico and in vitro, having used LDA and a Random Forest classifier.

	Comb. 1	Comb. 2	Comb. 3
RMSE LDA in silico	0.29	0.0060	0.10
RMSE LDA in vitro	0.51	0.036	0.096
RMSE RF in silico	0.21	0.0036	0.022
RMSE RF in vitro	0.48	0.036	0.032